SMS-45A MIRRORLESS & DSLR STEREO MINI SHOTGUN MICROPHONE PRODUCT MANUAL
T H A N K YO U F O R C H O O S I NG P O L S E N . The Polsen SMS-45A Mini Shotgun Microphone is a compact, lightweight, and durable directional stereo microphone designed for recording live audio directly into a DSLR camera, camcorder, or portable recorder. The SMS-45A features two condenser cardioid capsules arranged in an X-Y pattern for capturing pristine audio with realistic stereo imaging.
OV E R V I E W 1. 2. SMS-45A 1. Microphone ports 3. 2. Power switch/High-pass filter 3. Battery compartment 9. 4. Microphone holder 5. 5/8″ threaded socket 4. 6. Locking wheel 10. 7. Mounting foot 8. 1/4″-20 threaded socket 11. 9. Foam windscreen 10. Desktop stand 11. 1/8″ (3.5 mm) stereo mini connector 12. Carry bag 12. 5. 6. 7. 8.
P R E C AU T I O N S • Please read and follow these instructions and keep this manual in a safe place. • Keep this product away from water and flammable gases or liquids. • Use only the batteries recommended by this manual. • Do not attempt to disassemble or repair this product yourself. • Handle this product with care. • Clean this product with only a soft dry cloth. • Make sure that this product is intact and that there are no missing parts.
I N S TA L L I NG T H E B AT T E R Y The SMS-45A microphone runs on one LR44 button cell battery. To install the battery, make sure the SMS-45A is turned off and follow these steps: 1. Unscrew the base of the microphone to access the battery compartment. 2. Insert the new battery in the orientation indicated by the illustration on the side of the housing. SMS-45A SMS-45A SMS-45A 3. Replace the protective cover by screwing it back onto the base of the microphone.
M O U N T I NG T H E S M S - 4 5 A A N D T U R N I NG I T O N To attach the microphone to a camera with the shoe mount adapter, make sure the SMS-45A is turned off and follow these steps: 1. Rotate the locking wheel counterclockwise to loosen it. 2. Slide the shoe mount adapter all the way into your camera’s shoe mount. 3. Tighten the locking wheel by rotating it clockwise until secure. 4. Insert the microphone into the mic holder making sure that the power/high-pass filter switch is accessible.
To attach the microphone to a boom pole, make sure the SMS-45A is turned off and follow these steps: 1. Match the threaded post on the end of the boom pole with the threaded socket of the SMS-45A’s mic holder. 2. Screw the boom pole into the threaded socket until it is secure. 3. Insert the microphone into the mic holder making sure that the power/high-pass filter switch is accessible. To switch the microphone on, set the power switch to either the L-CUT or FLAT position.
U S I NG T H E H I G H - PA S S F I LT E R The high-pass filter attenuates noise below 80 Hz. This helps prevent the microphone from recording lowfrequency noises like the rumble of an air conditioner, blower, or fan. To turn on the high-pass filter, slide the switch on the microphone to the L-CUT position. To turn off the highpass filter, slide the switch to the FLAT position. R E CO R D I NG 1. Plug the 3.5 mm stereo mini connector into the audio input jack of your camera or portable recorder. 2.
Recording Tips: • The foam windscreen should always be used to diminish vocal plosives and wind noise. • It is always advisable to do a test recording first and listen to the playback before recording a complete take. T H E D E S K TO P M I C S TA N D 1. Attach the shoe-mount adapter by screwing in the 5/8″ threaded post of the adapter into the 5/8″ threaded socket of the mic holder. SMS-45A The SMS-45A can be used as a stand-alone microphone.
T R O U B L E S H O OT I NG Problem Solution The microphone is stuck in the camera’s Make sure the locking wheel is fully loosened. shoe mount. No sound was recorded. Make sure that a fresh battery is installed, and it is correctly orientated in the battery compartment. Make sure the switch on the microphone is set to either the FLAT or L-CUT position. The sound is distorted. Make sure the microphone’s audio connection is fully plugged into the audio input jack of your camera or portable recorder.
S P E C I F I C AT I O N S T R A N S D U C E R T Y P E Back electret condenser PAT T E R N X-Y stereo cardioid F R E Q U E NC Y R E S P O N S E 50 Hz ~ 18 kHz S E N S I T I V I T Y 45 dB ±3 dB (0dB = 1 V/Pa @ 1 kHz) I M P E DA NC E 1500 Ω S I G N A L-TO - NO I S E R AT I O 60 dB @ 1 kHz LO W F R E Q U E NC Y R O L L- O F F 80 Hz O P E R AT I O N VO LTAG E W I T H B AT T E R Y DC 1.5 V P LU G - I N P O W E R DC 2–10 V B AT T E R Y L I F E Approx. 100 hr. CO N N E C TO R 1/8″ (3.
O N E -Y E A R L I M I T E D WA R R A N T Y This Polsen product is warranted to the original purchaser to be free from defects in materials and workmanship under normal consumer use for a period of one (1) year from the original purchase date or thirty (30) days after replacement, whichever occurs later.
